Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-26T06:09:00.952Z Has data issue: false hasContentIssue false

A world key to the species of Pyxine with lichexanthone, with a new species from Brazil

Published online by Cambridge University Press:  07 August 2014

André APTROOT
Affiliation:
ABL Herbarium, Gerrit van der Veenstraat 107, NL-3762 XK Soest, The Netherlands. Email: andreaptroot@gmail.com
Patricia JUNGBLUTH
Affiliation:
Departamento de Botânica, IBB, UNESP, Caixa Postal 510, CEP 18.618-970, Distrito de Rubião Jr., Botucatu, São Paulo, Brazil
Marcela E. S. CÁCERES
Affiliation:
Departamento de Biociências, Universidade Federal de Sergipe, CEP: 49.500-000, Itabaiana, Sergipe, Brazil

Abstract

A world key is given to the species of Pyxine with lichexanthone in the upper cortex. Pyxine pustulata Aptroot & Jungbluth is described as a new corticolous species of Pyxine from São Paulo State in Brazil, with lichexanthone in the cortex, upper surface K−, a yellow to ochraceous medulla and clusters of laminal polysidiangia. Brazil is clearly the centre of Pyxine diversity, with 34 out of c. 70 species known worldwide.

Type
Articles
Copyright
Copyright © British Lichen Society 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aptroot, A. (1987) Pyxinaceae (Lichens). Flora of the Guianas, ser. E, 1: 159.Google Scholar
Awasthi, D. D. (1988) A key to the macrolichens of India and Nepal. Journal of the Hattori Botanical Laboratory 65: 207302.Google Scholar
Elix, J. A. (2009) Physciaceae. Flora of Australia 57: 494533.Google Scholar
Jungbluth, P. & Marcelli, M. P. (2011) The Pyxine pungens complex in São Paulo State, Brazil. Bryologist 114: 166177.Google Scholar
Jungbluth, P., Marcelli, M. P. & Kalb, K. (2011) A new species and a new record of Pyxine (Physciaceae) with norstictic acid from São Paulo State, Brazil. Mycotaxon 115: 435442.Google Scholar
Kalb, K. (1987) Brasilianische Flechten 1. Die Gattung Pyxine . Bibliotheca Lichenologica 24: 189.Google Scholar
Kalb, K. (2002) Pyxine. In Lichen Flora of the Greater Sonoran Desert Region, Vol. 1 (Nash, T. H. III, Ryan, B. D., Diederich, P., Gries, C. & Bungartz, F., eds): 437441. Tempe, Arizona: Lichens Unlimited, Arizona State University.Google Scholar
Kalb, K. (2004) New or otherwise interesting lichens II. Bibliotheca Lichenologica 88: 301329.Google Scholar
Malme, G. (1897) Die Flechten der ersten Regnellschen Expedition. I. Die Gattung Pyxine . Bihang Konglige svenska Vetenskaps-Akademiens Handlingar 23(13): 152.Google Scholar
Mongkolsuk, P., Meesim, S., Poengsungnoen, V. & Kalb, K. (2012) The lichen family Physciaceae in Thailand—I. The genus Pyxine . Phytotaxa 59: 3254.Google Scholar
Nayaka, S., Upreti, D. K., Ponmurugan, P. & Ayyappadasan, G. (2013) Two new species of saxicolous Pyxine with yellow medulla from southern India. Lichenologist 45: 38.CrossRefGoogle Scholar
Orange, A., James, P. W. & White, F. J. (2001) Microchemical Methods for the Identification of Lichens. London: British Lichen Society.Google Scholar
Swinscow, T. D. V. & Krog, H. (1975) The genus Pyxine in East Africa. Norwegian Journal of Botany 21: 165223.Google Scholar